From 380976731fd1a4bfad45a4bd079ab212ed4dc10b Mon Sep 17 00:00:00 2001
From: Andrej Makarov <andrej.makarov@skrt.biz>
Date: Wed, 25 Jan 2017 06:53:49 +0000
Subject: [PATCH] Add exercise: leap

---
 config.json                | 10 +++++++++-
 exercises/leap/example.jl  |  5 +++++
 exercises/leap/leap.jl     |  4 ++++
 exercises/leap/runtests.jl | 20 ++++++++++++++++++++
 4 files changed, 38 insertions(+), 1 deletion(-)
 create mode 100644 exercises/leap/example.jl
 create mode 100644 exercises/leap/leap.jl
 create mode 100644 exercises/leap/runtests.jl

diff --git a/config.json b/config.json
index 837f57da49859..737779d7a31ca 100644
--- a/config.json
+++ b/config.json
@@ -5,7 +5,15 @@
   "active": false,
   "test_pattern": "TODO",
   "exercises": [
-
+		{
+      "slug": "leap",
+      "difficulty": 1,
+      "topics": [
+        "control-flow (conditionals)",
+				"integers", 
+				"mathematics"
+      ]
+    }
   ],
   "deprecated": [
 
diff --git a/exercises/leap/example.jl b/exercises/leap/example.jl
new file mode 100644
index 0000000000000..e4deb5bb25edd
--- /dev/null
+++ b/exercises/leap/example.jl
@@ -0,0 +1,5 @@
+# Leap on every year that is evenly divisible by 4
+# except every year that is evenly divisible by 100
+# unless the year is also evenly divisible by 400
+is_leap_year(year::Int) = (year % 100 != 0 && year % 4 == 0) || (year % 400 == 0)
+
diff --git a/exercises/leap/leap.jl b/exercises/leap/leap.jl
new file mode 100644
index 0000000000000..1af9bacbeffb0
--- /dev/null
+++ b/exercises/leap/leap.jl
@@ -0,0 +1,4 @@
+function is_leap_year(year::Int)
+
+end
+
diff --git a/exercises/leap/runtests.jl b/exercises/leap/runtests.jl
new file mode 100644
index 0000000000000..08642402c7e78
--- /dev/null
+++ b/exercises/leap/runtests.jl
@@ -0,0 +1,20 @@
+using Base.Test
+
+include("leap.jl")
+
+@testset "Year not divisible by 4: common year" begin
+  @test !is_leap_year(2015)
+end
+
+@testset "Year divisible by 4, not divisible by 100: leap year" begin
+  @test is_leap_year(2016)
+end
+
+@testset "Year divisible by 100, not divisible by 400: common year" begin
+  @test !is_leap_year(2100)
+end
+
+@testset "Year divisible by 400: leap year" begin
+  @test is_leap_year(2000)
+end
+